diff --git a/app/main.py b/app/main.py
index 2b86e84..bcaee73 100644
--- a/app/main.py
+++ b/app/main.py
@@ -3476,13 +3476,13 @@ async def og_template(request: Request, drucksache: str = ""):
 @app.get("/v2/scorecard")
 async def scorecard_template(
     request: Request, drucksache: str, bundesland: str = "NRW",
-    format: str = "og",
+    format: str = "portrait",
 ):
     """Internes Render-Template für Scorecards (#179).
 
-    `format=og`       → 1200×630  (LinkedIn/Twitter-OG)
+    `format=portrait` → 1080×1350 (Instagram 4:5 Hochformat — DEFAULT)
     `format=square`   → 1080×1080 (Instagram quadratisch)
-    `format=portrait` → 1080×1350 (Instagram 4:5 Hochformat — Default fuer Feed)
+    `format=og`       → 1200×630  (LinkedIn/Twitter-OG)
     """
     from .config import settings as _settings
     drucksache = validate_drucksache(drucksache)
@@ -3587,7 +3587,7 @@ async def _render_scorecard_pdf(
 
 @app.get("/api/assessment/scorecard.png")
 async def api_scorecard_png(
-    drucksache: str, bundesland: str = "NRW", format: str = "og", scale: float = 2.0,
+    drucksache: str, bundesland: str = "NRW", format: str = "portrait", scale: float = 2.0,
 ):
     """Liefert die Scorecard als PNG via WeasyPrint→PyMuPDF.
 
@@ -3621,7 +3621,7 @@ async def api_scorecard_png(
 
 @app.get("/api/assessment/scorecard.pdf")
 async def api_scorecard_pdf(
-    drucksache: str, bundesland: str = "NRW", format: str = "og",
+    drucksache: str, bundesland: str = "NRW", format: str = "portrait",
 ):
     """Liefert die Scorecard als PDF via WeasyPrint (#179).
 
diff --git a/app/templates/v2/screens/antrag_detail.html b/app/templates/v2/screens/antrag_detail.html
index 1c70003..961111f 100644
--- a/app/templates/v2/screens/antrag_detail.html
+++ b/app/templates/v2/screens/antrag_detail.html
@@ -942,22 +942,41 @@ window.v2ShowMatrixFieldInfo = function(field) {
     window.open(url, '_blank', 'noopener');
   };
 
-  /* Instagram-Sharing: oeffnet das Hochkant-PNG (1080×1350, 4:5 — das von
-     Instagram empfohlene Feed-Format) in neuem Tab, legt den Begleittext
-     in die Zwischenablage. Instagram hat keinen Web-Share-Endpoint —
-     User muss das Bild lokal speichern und in der Instagram-App posten,
-     der Text liegt dann zum Einfuegen bereit. */
-  window.v2DetailShareInstagram = function() {
+  /* Instagram-Sharing: bevorzugt Web-Share-API mit Datei-Blob — auf
+     Mobile-Browsern (Safari iOS, Chrome Android) oeffnet das den nativen
+     Share-Sheet, in dem Instagram als Ziel auftaucht und den User direkt
+     in die Instagram-App pusht. Auf Desktop (kein File-Sharing) oder
+     unsupported Browsern: PNG im neuen Tab + Text in Zwischenablage. */
+  window.v2DetailShareInstagram = async function() {
     var url = '/api/assessment/scorecard.png?drucksache=' + encodeURIComponent(DRS)
             + '&bundesland=' + encodeURIComponent(BL || 'NRW')
             + '&format=portrait&scale=2';
-    var win = window.open(url, '_blank', 'noopener');
     var body = buildLongShareText();
+
+    // Native Web-Share-API mit Datei probieren (nur Mobile-Browser
+    // koennen files: mit canShare positiv beantworten).
+    try {
+      var resp = await fetch(url);
+      if (resp.ok) {
+        var blob = await resp.blob();
+        var safeDrs = (DRS || 'antrag').replace(/[^a-zA-Z0-9_-]/g, '-');
+        var file = new File([blob], 'gwoe-' + safeDrs + '.png', { type: 'image/png' });
+        var data = { title: TITLE, text: body, files: [file] };
+        if (navigator.canShare && navigator.canShare(data) && navigator.share) {
+          await navigator.share(data);
+          v2ShareToast('Share-Dialog geöffnet — Instagram als Ziel auswählen.');
+          return;
+        }
+      }
+    } catch (_) {
+      // Cancel oder Fehler — fallthrough zum Fallback
+    }
+
+    // Fallback Desktop / unsupported: PNG in neuem Tab + Text kopieren
+    var win = window.open(url, '_blank', 'noopener');
     if (navigator.clipboard && navigator.clipboard.writeText) {
       navigator.clipboard.writeText(body).then(function() {
-        v2ShareToast('Hochkant-Bild öffnet — Bild speichern, in Instagram posten. Text liegt in der Zwischenablage.');
-      }, function() {
-        v2ShareToast('Hochkant-Bild öffnet. Text-Kopieren manuell.');
+        v2ShareToast('Bild öffnet — speichern und in Instagram posten. Text liegt in der Zwischenablage.');
       });
     }
     if (!win) v2ShareToast('Bitte Pop-up-Blocker prüfen.');
diff --git a/app/templates/v2/screens/scorecard.html b/app/templates/v2/screens/scorecard.html
index 673d7cc..8fbbd92 100644
--- a/app/templates/v2/screens/scorecard.html
+++ b/app/templates/v2/screens/scorecard.html
@@ -30,7 +30,7 @@
   .card {
     width: 100%;
     height: 100%;
-    padding: {% if is_og %}38px 48px{% elif is_portrait %}54px 56px 32px{% else %}32px 36px{% endif %};
+    padding: {% if is_og %}28px 38px{% elif is_portrait %}34px 38px 24px{% else %}26px 30px{% endif %};
     display: flex;
     flex-direction: column;
     justify-content: space-between;
@@ -150,23 +150,23 @@
     aspect-ratio: 1 / 1;
   }
 
-  /* ── portrait Layout ── */
+  /* ── portrait Layout — kompakt, weniger Rand ── */
   .portrait-body {
     flex: 1;
     display: flex;
     flex-direction: column;
-    gap: 22px;
-    margin-top: 26px;
+    gap: 16px;
+    margin-top: 16px;
   }
   .portrait-title {
-    font-size: 32pt;
-    line-height: 1.15;
+    font-size: 36pt;
+    line-height: 1.1;
     color: #1f1f1f;
     font-weight: 700;
   }
   .portrait-fraktionen {
     font-family: 'Source Code Pro', monospace;
-    font-size: 13pt;
+    font-size: 14pt;
     color: #555;
   }
   .portrait-fraktionen .pill {
@@ -181,19 +181,19 @@
     display: flex;
     align-items: center;
     gap: 28px;
-    padding: 16px 0;
+    padding: 12px 0;
     border-top: 1px solid rgba(0,0,0,0.08);
     border-bottom: 1px solid rgba(0,0,0,0.08);
   }
   .portrait-score-num {
     font-family: 'Source Code Pro', monospace;
-    font-size: 110pt;
+    font-size: 130pt;
     font-weight: 700;
-    line-height: 0.95;
+    line-height: 0.92;
     color: {{ score_color }};
     flex-shrink: 0;
   }
-  .portrait-score-num .slash { font-size: 60pt; opacity: 0.45; }
+  .portrait-score-num .slash { font-size: 64pt; opacity: 0.45; }
   .portrait-score-side {
     display: flex;
     flex-direction: column;
@@ -201,44 +201,48 @@
   }
   .portrait-score-label {
     font-family: 'Source Code Pro', monospace;
-    font-size: 12pt;
+    font-size: 13pt;
     text-transform: uppercase;
     letter-spacing: 0.12em;
     color: #555;
   }
   .portrait-verdict {
-    font-size: 24pt;
+    font-size: 28pt;
     color: {{ score_color }};
     font-weight: 700;
-    line-height: 1.15;
+    line-height: 1.12;
   }
   .portrait-matrix-block {
     display: flex;
-    align-items: center;
-    gap: 24px;
+    align-items: stretch;
+    gap: 22px;
   }
   .portrait-matrix {
     display: grid;
     grid-template-columns: repeat(5, 1fr);
     grid-template-rows: repeat(5, 1fr);
     gap: 4px;
-    width: 380px;
-    height: 380px;
+    width: 460px;
+    height: 460px;
     flex-shrink: 0;
   }
   .portrait-matrix-legend {
     flex: 1;
     font-family: 'Source Code Pro', monospace;
-    font-size: 11pt;
+    font-size: 12pt;
     color: #555;
     line-height: 1.5;
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
   }
   .portrait-matrix-legend .l-title {
     font-weight: 700;
     text-transform: uppercase;
     color: #009DA5;
-    margin-bottom: 8px;
+    margin-bottom: 10px;
     letter-spacing: 0.06em;
+    font-size: 13pt;
   }
   .portrait-matrix-legend ul {
     list-style: none;
@@ -248,18 +252,18 @@
   .portrait-matrix-legend li {
     display: flex;
     align-items: center;
-    gap: 6px;
-    margin-bottom: 4px;
+    gap: 8px;
+    margin-bottom: 6px;
   }
   .portrait-matrix-legend .swatch {
-    width: 14px; height: 14px; border-radius: 2px; flex-shrink: 0;
+    width: 18px; height: 18px; border-radius: 2px; flex-shrink: 0;
   }
   .portrait-summary {
-    font-size: 14pt;
-    line-height: 1.55;
+    font-size: 15pt;
+    line-height: 1.5;
     color: #333;
     display: -webkit-box;
-    -webkit-line-clamp: 5;
+    -webkit-line-clamp: 6;
     -webkit-box-orient: vertical;
     overflow: hidden;
   }
@@ -267,9 +271,9 @@
   /* ── Footer ── */
   .footer {
     position: absolute;
-    bottom: {% if is_og %}16px{% elif is_portrait %}24px{% else %}12px{% endif %};
-    left: {% if is_og %}48px{% elif is_portrait %}56px{% else %}36px{% endif %};
-    right: {% if is_og %}48px{% elif is_portrait %}56px{% else %}36px{% endif %};
+    bottom: {% if is_og %}12px{% elif is_portrait %}16px{% else %}10px{% endif %};
+    left: {% if is_og %}38px{% elif is_portrait %}38px{% else %}30px{% endif %};
+    right: {% if is_og %}38px{% elif is_portrait %}38px{% else %}30px{% endif %};
     display: flex;
     justify-content: space-between;
     align-items: center;
@@ -277,7 +281,7 @@
     font-size: 9pt;
     color: #888;
     border-top: 1px solid rgba(0,0,0,0.1);
-    padding-top: 8px;
+    padding-top: 6px;
   }
   .footer .brand { color: #009DA5; font-weight: 700; letter-spacing: 0.06em; }
 </style>